2007 BMW M3 vs. 2004 Opel Signum
To start off, 2007 BMW M3 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Opel Signum. In addition, the cost of maintenance, including insurance, on 2004 Opel Signum would be higher. At 3,245 cc (6 cylinders), 2007 BMW M3 is equipped with a bigger engine. In terms of performance, 2007 BMW M3 (338 HP @ 7900 RPM) has 239 more horse power than 2004 Opel Signum. (99 HP @ 3120 RPM). In normal driving conditions, 2007 BMW M3 should accelerate faster than 2004 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M3 weights approximately 60 kg more than 2004 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 BMW M3 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2007 BMW M3. However, in wet, icy, snow, or gravel driving conditions, 2004 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 BMW M3 (365 Nm @ 4900 RPM) has 135 more torque (in Nm) than 2004 Opel Signum. (230 Nm @ 1500 RPM). This means 2007 BMW M3 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Signum.
Compare all specifications:
| 2007 BMW M3 | 2004 Opel Signum | |
| Make | BMW | Opel |
| Model | M3 | Signum |
| Year Released | 2007 | 2004 |
| Body Type | Convertible | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3245 cc | 1910 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 99 HP |
| Engine RPM | 7900 RPM | 3120 RPM |
| Torque | 365 Nm | 230 Nm |
| Torque RPM | 4900 RPM | 1500 RPM |
| Engine Bore Size | 87 mm | 84.1 mm |
| Engine Stroke Size | 91 mm | 90 mm |
| Engine Compression Ratio | 11.5:1 | 18.5:1 |
| Fuel Type | Gasoline | Diesel |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1655 kg | 1595 kg |
| Vehicle Length | 4500 mm | 4640 mm |
| Vehicle Width | 1790 mm | 1800 mm |
| Vehicle Height | 1380 mm | 1470 mm |
| Wheelbase Size | 2740 mm | 2620 mm |
| Fuel Consumption Overall | 12.1 L/100km | 5.9 L/100km |
| Fuel Tank Capacity | 63 L | 58 L |
